This is assuming you are in Pokemon Diamond, Pearl, or Platinum, since the Poke Radar does not exist in other games. Without the Poke radar, it is much harder to get a ditto, but it can be done. Go to the right of Canalave City, and there is a patch of grass somewhere between Canalave and the West Jubilife entrance, and that is where you find ditto.
At the trophy garden, rarely. it's in Pokemon platinum.
No trainer has a ditto.. if you want Ditto for your National Pokedex, use the Poke Radar on Route 218
Ditto is a Normal type Pokemon known for its Transform ability. In Pokemon Pearl, it can be found on Route 218 using the Poke Radar.
Ditto can be found in both Diamond and Pearl on route 218 using the Poke radar. Ditto is very useful in breeding Pokemon for specific traits. Especially if find an male or female is difficult.
You can catch a Ditto in Pokemon Diamond after you obtain the National Dex and use the Poke Radar in the grass in route 228(or 227). Dittos have appear about 20% of the time.
ditto is in route218 but you must have a poke radar if you have a poke radar just patiently try until you meet ditto you can get a poke radar when you obtain the nat.dex you can obtain the nat.dex by complete the sinnoh pokedex.good luck
At the trophy garden, rarely. it's in Pokemon platinum.
route 218 with the poke radar
You can get a ditto on route 218 by using poke radar (or migrate:]
You use the poke radar at route 218to find a ditto.
route 18 use poke radar
Route 209 with poke radar. T
go to route 218 and use a poke radar
by calanave with poke radar
In Pokemon Pearl, Ditto can be found in route 218 using the Poke Radar.
No trainer has a ditto.. if you want Ditto for your National Pokedex, use the Poke Radar on Route 218
use a poke 'radar in route '218'